Notes 10.1: Energy Flow.

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Presentation transcript:

Notes 10.1: Energy Flow

Law of Conservation of Energy Energy can’t be created or destroyed, just transferred from one form to another. A Rube Goldberg machine is an example of energy transfer in a closed system. http://www.noob.us/entertainment/mythbusters-rube-goldberg-machine/

Forms of energy: Mechanical Energy Kinetic Potential (gravitational, rubber bands, springs) Work

Electromagnetic energy (EM Spectrum) Radiant Energy Electromagnetic energy (EM Spectrum) Light, infrared, UV, X-rays , etc.

Electrical Energy Flow of electrical current

Energy stored in bonds that join atoms Chemical Energy Energy stored in bonds that join atoms Gasoline, food

Nuclear Energy Fusion – combining nuclei (stars) Fission – splitting nuclei (power plants)

Thermal Energy Heat is the flow of this energy Can be used to do work

Remember: You can’t get more energy out than is put in. There is no such thing as free energy. Perpetual motion is impossible due to the effects of friction.